VirtualTimeKernel/install.sh at master · littlepretty/VirtualTimeKernel · GitHub

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#!/bin/bash

function usage() {
        echo "Usage: $0 target"
        echo "where target: either [dilation], [freeze], or [both]"
        exit 1
}

DST=~/build_kernel
TARGET=$1

if [ -e $DST ]; then
        echo "Clean up previous build"
        sudo rm -rf $DST
fi

if [ ! -e linux-3.16.3.tar.gz ]; then
        wget https://www.kernel.org/pub/linux/kernel/v3.0/linux-3.16.3.tar.gz
fi
echo "Step 0. Unpack kernel source"
tar -xzf linux-3.16.3.tar.gz
mv linux-3.16.3 $DST

# generate patch file
PATCH=VirtualTime.patch
echo "        Patch file written to ${PATCH}"
diff -rup $DST ./ > ${PATCH}
echo ""

FILES="kernel/fork.c                    \
kernel/time.c                           \
kernel/hrtimer.c                        \
kernel/posix-timers.c                   \
kernel/time/timekeeping.c               \
kernel/time/clockevents.c		\
kernel/time/tick-sched.c		\
kernel/futex.c                          \
arch/x86/vdso/vclock_gettime.c          \
include/uapi/linux/sched.h              \
include/linux/sched.h                   \
include/linux/init_task.h               \
include/linux/time.h                    \
include/linux/ktime.h                   \
include/linux/timekeeper_internal.h     \
fs/proc/base.c                          \
fs/eventpoll.c				\
fs/select.c				\
include/net/sch_generic.h               \
Makefile                                \
build_all.sh"
#net_dilation/core/dev.c                \

echo "Step 1. Transfer modified kernel source"
for f in $FILES; do
        cp -v $f $DST/$f
done

if [ "dilation" = $TARGET ]; then
        cp -v net_dilation/sched/sch_generic.c $DST/net/sched/sch_generic.c
        cp -v net_dilation/sched/sch_htb.c $DST/net/sched/sch_htb.c
elif [ "freeze" = $TARGET ]; then
        cp -v net_freeze/sched/sch_generic.c $DST/net/sched/sch_generic.c
        cp -v net_freeze/sched/sch_htb.c $DST/net/sched/sch_htb.c
elif [ "both" = $TARGET ]; then
        cp -v net_both/sched/sch_generic.c $DST/net/sched/sch_generic.c
        cp -v net_both/sched/sch_htb.c $DST/net/sched/sch_htb.c
else
        usage
fi

echo "Step 2. Build new kernel"
cd $DST
sudo ./build_all.sh